baber/WOPTO huggingface dataset:
Patent GB-859729-A (GB)
Title: Pigmented amino plastic resinous materials
IPC: C08K9/02
Filed: 1959-01-02
Abstract: A TiO2 pigment of the rutile type is coated (see Group III) with hydrous oxides of aluminium and silicon, the coating is calcined and the resulting pigment is either added to a urea- or melamine formaldehyde resin and used to impregnate fibrous sheets for making laminates, or is added to paper pulp and the paper formed therefrom is impregnated with a urea- or melamine-formaldehyde resin.  The laminae may if desired be of glass fibres fabrics or wood products, and it is also stated that the pigments may be used in preparing pigmented resinous materials in the form of massive moulded products. The pigmented products of the invention are less liable to discolour. Pigmented paper laminates may be made according to the invention by impregnating paper with an aqueous alcoholic slurry of coated pigment in aminoplast resin, drying and hot-pressing a number of superposed laminae or by adding the pigment to paper stock, forming sheets and impregnating a number of them with an aqueous alcoholic solution of resin prior to laminating by hot pressure.  In the example TiO2 coated with AI2O3 and Si O2 was added to aqueous alcoholic urea-or melamine formaldehyde resin.  Sheets of filter paper were impregnated with the slurry, dried and hot-pressed together.  The discolourations were measured and compared with the controls after exposure under sun lamps.ALSO:Titania of the rutile modification is coated with hydrous oxides of aluminium and silicon, and the coating is calcined preferably for 1 to 3 hours at 650 DEG -800 DEG C.  The pigments are used with aminoplastic resinous material (see Group IV(a)).  An aqueous slurry of TiO2 pigment is mixed successively or simultaneously with aqueous solutions of aluminium and silicon compounds and the hydrous oxides are precipitated on to the TiO2. The mol ratio of alumina to silica may vary from 1:1 to 2:1, but is preferably 1:1.  The two together constitute 2-15% by weight of the TiO2.  Suitable aluminium compounds are the sulphate, nitrate chloride or sodium or potassium aluminate. Suitable silicon compounds are sodium, potassium or ammonium silicate.  Preferably the silicate solution is added before the aluminium compound.  In Examples (1) pigment A is prepared by adding aqueous sodium silicate and aluminium sulphate successively to an aqueous slurry of calcined rutile TiO2. Caustic soda was added to a pH of 7.0, to produce with heating to 60 DEG C. a 1:1 molar coating of the two hydrous oxides.  The coated pigment is filtered off, washed, dried, calcined at 725 DEG C., dry milled and pulverized.  (2) In making pigment B, the sodium silicate solution was made alkaline before addition.  (3) For pigment C, solutions of alkaline sodium silicate and aluminium sulphate were simultaneously added to the TiO2.
Patent GB-802280-A (GB)
Title: A convertiplane
IPC: B64C27/30
Filed: 1956-01-04
Abstract: 802,280. Convertiplanes. UNITED AIRCRAFT CORPORATION. Jan. 4, 1956 [Jan. 5, 1955], No. 274/56. Class 4. A convertiplane comprises a low aspect ratio wing 10 of substantially triangular planform attached to a fuselage 12 which carries tandem crew positions 14, 16 and houses a gas turbine power plant 50 driving a compressor 52. A pylon 30, extended by a rearwardly extending fairing 74, encloses a hollow rotor shaft 32 which supports a single rotor blade 34 balanced by a counterweighted arm 36. The tip of the blade is formed with jet propulsion nozzles 66 which are fed with compressed air from compressor 52 through a control valve 60. For take-off and landing the valve 60 is placed in the full line position whereby the exhaust flow from compressor 52 drives the rotor. The wing area lies within the rotor disc area whereby the wing and rotor have similar characteristics which result in a smooth transfer from vertical to horizontal flight when valve 60 is moved to the dotted line position. In this position the flow from the compressor is diverted to a rearwardly directed propulsion nozzle 62. The engine 50 discharges through directional ducts 54. In forward flight the rotor blade is turned about its longitudinal axis and inclined about its flapping axis to lie in the position shown by dotted lines in Fig. 2 until it rests between supporting pads 72 mounted on fairing 74 above rudder 68. A further embodiment is described incorporating a larger fuselage wherein the rotor blade is housed by bodily downward movement behind a fairing on top of the fuselage. Two jet propulsion engines are housed in each wing, each driving a compressor, and a pair of retractable auxiliary surfaces are mounted one on each side of the forward part of the fuselage.
Patent GB-1201751-A (GB)
Title: Oscillator circuit
IPC: H03K17/955
Filed: 1969-01-02
Abstract: 1,201,751. Intruder alarms. WAGNER ELECTRIC CORP. 2 Jan., 1969 [4 Jan., 1968], No. 290/69. Heading G4N. [Also in Divisions G1 and H3] An oscillator circuit generates an output comprising a series of pulse trains, the first, pulse of each train being larger than any other in the train, in response to the simultaneous application of an A.C. and a D.C. input signal. In a proximity detector, a relaxation oscillator comprising a neon lamp 22 is provided with an A.C. supply over lines 10, 12, which is also rectified by diode 16 to provide the D.C. bias, and also the D.C. supply for the subsequent stages. The bias, developed across capacitor 18, is such that the oscillator produces a train of pulses during each negative half cycle of the A.C. supply, and is inoperative during each positive half cycle. The output of the oscillator is amplified by transistor 48 and fed to the input of switch 65 which under normal conditions is conductive to short out relay winding 84. The change in capacity in the oscillator circuit when a person or object approaches antenna 42 causes a change in oscillator output level which turns off switch 65 to allow relay 84 to energize. Regulation of the base-collector and baseemitter voltages of transistor 48 is provided by neon tube 54. In an alternative form of oscillator, Fig. 2 (not shown), the A.C. and D.C. inputs are applied in parallel instead of in series.
Patent GB-907711-A (GB)
Title: Hydrofoil craft
Inventor: CARL WILLIAM PRICE
IPC: B63B1/30
Filed: 1959-01-03
Abstract: 907,711. Hydrofoil craft. GRUMMAN AIRCRAFT ENGINEERING CORPORATION. Jan. 3, 1959, No. 302/59. Classes 113 and 114. A hydrofoil craft includes in combination a hull 10 and a main hydrofoil system 25 positioned relative to the centre of gravity of the hull for supporting above the water most of the weight of the hull when moving through the water. The main hydrofoil system 25 comprises at least two hydrofoils 30 having upwardly inclined faces and being disposed at a fixed angle of incidence of from 0 degrees to approximately 40 degrees with a fixed sweepback angle of approximately from 20 degrees to 50 degrees a fixed dihedral angle of from approximately 20 degrees to 40 degrees and a fixed thickness ratio of approximately 4 to 10% of the chord. The craft is also provided with a stablizing hydrofoil system 40 which is conformed to remain constantly submerged during movement through the water. The main system 25 is located at the outermost edges of sequifoils 14; which are provided to prevent the craft rolling over whilst at rest, and are retractable to the positions shown by chain-lines for Fig. 3. The system 40 comprises hydrofoils 42 joined to the strut 41 which is supported by a shaft 45 mounted rotatably in a tube 46 and is adapted to be rotated about a substantially vertical axis, for steering, by axial movement of the tube 51 joined to the crank 50 which is connected to the tube 46, and about a transverse pivot 48 for retracting to a position over the top side of the hull 10. The forward end of the tube 51 (not shown) is connected through a bell crank and worm gear to a steering wheel. The main system 25 may comprise a pair of hydrofoils which are supported by three struts and which completely span the underside of the craft.
Patent GB-584792-A (GB)
Title: Manufacture of new nitro-ethers
IPC: C07C41/06
Filed: 1944-01-07
Abstract: Nitroethers of the formula R111-O-CRR1 -CHR11NO2 are prepared by reacting a nitroolefine of the formula CRR1=CR11NO2 with an alcohol of the formula R111OH in the presence of a basic substance. Substances which form nitro-olefines under the reaction conditions may also be used, for example, the esters of the alcohol of the formula HOCRR1 -CHR11NO2.  R, R1 and R11 may be hydrogen or saturated aliphatic radicals or may form part of a cycloaliphatic ring.  R111 is an alkyl radical which may be substituted by aryl, hydroxy or alkoxy groups.  Specified starting materials are 2-nitro-2-butene, 1- or 2-nitro-propene, 2-nitro-4-methyl-2-pentene, 1-nitro-cyclohexene. Alcohols which may be used include methyl-, ethyl-, isopropyl-, n-butyl-, dodecyl-alcohols, ethylene glycol or b -ethoxyethanol. In examples: (1) 2-nitro-3-methoxy butane; (2) 2-nitro-1-methoxy propane; (3) 1-nitro-2-n-butyl oxypropane; and (4) 2-nitro-3-ethoxy-4-methyl pentane are obtained.  The product of example (2) condenses with the nitro-olefine to yield 2 : 4-dinitro-5-methoxy-4-methyl-n-pentane which may be brominated. Specification 584,789 is referred to.
Patent GB-562699-A (GB)
Title: Posts for buildings
IPC: E04C3/34
Filed: 1943-01-07
Abstract: 562,699. Posts for buildings. GLOVER, C. W. Jan. 7, 1943, No. 336. [Class 20 (i)] A precast concrete post for buildings has ledges 1 provided for supporting the ends of beams, the ledges being formed on opposite sides of the post by wings 3 which decrease in width from the ledges to the lower end of the post. The post is also stiffened bv further wings 4 disposed in a plane at right angles to the plane of the wings 3, and increasing in width downwardly from the ledges towards the lower end of the post. The wings may be detachable from the post and may pass through slots in the post and be secured together by bolts entering countersunk holes. The upper portion of the post is provided with apertures 2 to receive the bolts for attaching the beam ends.
Patent GB-565349-A (GB)
Title: Titanium oxide pigment production
IPC: C01G23/08
Filed: 1943-01-12
Abstract: 565,349. Titanium oxide. DU PONT DE NEMOURS & CO., E. I. Jan. 12, 1943, No. 587. Convention date, Jan. 9, 1942. [Class 1 (iii)] A rutile titanium oxide pigment is prepared by mixing a previously prepared anatase TiO2 with a separately prepared titanium-oxygen compound which when calcined at a temperature not in excess of about 1000‹ C., shows the rutile X-ray diffraction pattern, and calcining the mixture. The added compounds acts as a promoter for the conversion of anatase to rutile which occurs at a temperature below that normally required. The preferred promoter is a precipitated, raw rutile TiO2 and is added in an amount of 1-33, preferably 2-10 per cent by weight of the anatase, the mixture then being calcined at 750-1000, preferably 900- 1000‹ C. The anatase may be prepared by hydrolysis of a titanium salt such as titanium sulphate solution with colloidal titanium oxide as seeding agent, as in U.S.A. Reissue Specification 18854, and the rutile promoter by hydrolysis of titanium chloride, the two being mixed, preferably while in aqueous suspension, filtered, dried, and calcined until substantially completely in the rutile form, generally for 1-3 hrs. Previously calcined anatase may, however, be treated as well as extended pigments containing, e.g. barium or calcium sulphate, calcium carbonate, magnesium or other silicates. Instead of precipitated raw rutile, prepared by hydrolysis of titanium chloride or nitrate, a promoter may be used which is in the anatase form, but which on calcination is converted to rutile below about 1000, preferably 600-900‹ C. Reduced raw TiO2 products obtained by the mechanical disintegration of the oxide to reduce particle size as described in Specification 566,920, may also be used. In examples : (1) titanium chloride solution is neutralized with ammonia to a pH of 6.0 to precipitate orthotitanic acid which is washed and peptized by slurrying to a concentration of 30 g./l. TiO2 and 0.3 N HCI, and heating to 80‹ C. for 20 mins. The sol produced is added to TiCl4 solution in an amount equivalent to 3 per cent on the TiO2 basis, the concentration adjusted to 110 g./l., zinc added to reduce 0.5 per cent of the Ti to the trivalent state, and the solution heated to 95-98‹ C. for 30 mins. Sulphuric acid is added and the precipitate filtered, washed and slurried to a concentration of 200 g./l. This constitutes the raw rutile promoter. It is mixed in an amount of 10 per cent on a TiO2 basis with anatase raw pigment prepared as above described, and the mixture filtered, dried and calcined at 950‹ C. for 30 mins. giving 98 per cent rutile conversion ; (2) anatase pigment prepared as in (1) is neutralized to pH 6.8-7.0 with ammonia and after washing out sulphate ions, is mixed with the rutile promoter of (1) in a ratio of 3 : 1 and calcined similarly.
Patent GB-191725-A (GB)
Title: Improvements in or relating to endless track vehicles
IPC: B62D55/15
Filed: 1923-01-08
Abstract: 191,725. KÚgresse, A. Jan. 16, 1922, [Convention date]. Pulleys.-A pulley made up of two parts 1, 5 for carrying an endless track is arranged so that the outer portion 5 is drawn automatically towards the inner portion 1 when the brake shoes are applied to the latter through the medium of the lever 4. This movement causes the track guide 9 to grip the track firmly. To effect this movement, the two parts of the pulley are connected by circular inclined planes 6. Specification 127,322 is referred to.
Patent GB-1182261-A (GB)
Title: Service Tee for Pipelines.
Inventor: COOKE FRANK
IPC: F16L41/16
Filed: 1966-01-06
Abstract: 1,182,261. Branch connections. E. PASS & CO. Ltd. 27 Feb., 1967 [6 Jan., 1966], No. 641/66. Heading F2G. A device for connecting a service pipe A to a main pipe M comprises a tailpiece 10 screwed into the pipe M, a tubular T-piece 11, and a plug 12 which is screw-threaded at each end thereof and is adapted to be screwed either into the member 10 or the T-piece, as shown, so that communication is established between the bore of the member 10 and the pipe A. The plug has sealing surfaces 25, 26 intermediate the screw-threaded portions 12a, 12b thereof. The plug has formations 27 adapted to be engaged by a key to effect rotary and axial movements of the plug, and the screwed ferrule 16 of the tailpiece 10 passes through a saddle 17 and sealing member 18.
Patent GB-487508-A (GB)
Title: Improvements relating to liquid measuring and dispensing apparatus
IPC: B67D7/08
Filed: 1937-01-09
Abstract: 487,508. Liquid-dispensing apparatus. AVERY-HARDOLL, Ltd., and FRASER, J. Jan. 9, 1937, No. 677. [Class 116] [Also in Group XIX] A liquid measuring and dispensing apparatus of the motordriven flow-meter type is provided with means to couple the motor to the zeroizing mechanism at the commencement of a delivery operation, and with means for disconnecting the motor when the drive has operated for a period sufficient to ensure complete zeroizing irrespective of the quantity delivered at the preceding delivery. The invention is described as applied to apparatus incorporating a price-computing mechanism as described in Specification 465,347, [Group XIX], and in which actuation of the motor switch is effected by a lever 24 which serves as a rest for the hose nozzle when not in use. Upon removal of the nozzle at the commencement of a delivery operation, a lever 24a pivoted at 24b, raises a rod 28 to close the motor switch, the rotation of the motor being transmitted to a vertical shaft 6 carrying a bevel pinion 7 which meshes with a second pinion 8 secured to a ratchet wheel 9 and free to rotate on the zeroizing shaft 12. The pivoting movement of the lever 24a also causes the end 21a of a member 21, pivoted on a lever 22 connected to the lever 24a by a link 23, to engage with the lower end of a catch lever 15, and thus effect the disengagement of the nose 13b of a latch member 13 from a notch 15a at the upper end of the catch lever. The members 13, 15, are pivotally mounted on a plate 11 secured to the zeroizing shaft 12 and are normally retained in engagement by a spring 16. The rotation of the latch member 13 under the action of the spring 16, consequent upon its disengagement from the catch lever 15, causes engagement of a pawl 10, mounted on the pivot 14 of the member 13, with the ratchet wheel 9, whereby the drive from the motor is coupled to the plate 11 and shaft 12 to effect zeroizing. The initial movement of the zeroizing mechanism disengages the tail portion 17a of a spring-load driving pawl 17 attached to the plate 11 from a notch 20a in a fixed abutment 20, and the nose of the pawl engages with a second ratchet wheel 18 on the shaft 12 and secured to an idler pinion 19 in mesh with the price and quantity indicating mechanisms. When the zeroizing mechanism has completed one revolution, a projecting arm 13c of the latch member 13 contacts with the portion 21a of the member 21 to effect reengagement of the members 13, 15, and consequent disengagement of the pawl 10 from the ratchet wheel 9 to uncouple the electric motor from the zeroizing mechanism, and the tail 17a of the pawl 17 engages with the notch 20a to retain the plate 11 and its associated members in the set position for a subsequent delivery operation. The pawl 10 carries a pin 10a which engages within a hole 13a in the latch member 13, whereby a limited relative movement of the pawl and latch is permitted. Specification 487,509 also is referred to.
Patent GB-751867-A (GB)
Title: Apparatus for screwing-up and unscrewing nuts and the like
IPC: B25B19/00
Filed: 1954-01-11
Abstract: 751,867. Positive clutches. ANTRAIGUE, R. Jan. 11. 1954 [Nov. 2, 1953], No. 714/54. Class 80(2) [Also in Group XXII] An impact wrench, particularly for screwing up and unscrewing nuts of automobile .wheels, is mounted on a wheeled frame and has a heavy flywheel 54 which can be spun up by a motor 135 and then suddenly conected, under manual control, to a tube 51 carrying a nut socket. The flywheel 54 is rotatably mounted on a shaft 96 and carries rotatably mounted, on the forward part 53 of its boss, the socket tube 51 and, rotatably mounted on the rear part 94 of its boss, a ring 88 having at least one notch 87. A shaft 60 is journalled in the flywheel and carries a finger 62 projecting into the notch 87 and also a member 65 having a pair of legs 66, 67 which can engage a projection 58 on the socket tube but are normally held in a disengaged position by a pair of springs 79, 80. Brake members 99 and 114 are provided for the ring 88 and the flywheel and are operated, respectively, by cable-operated linkages 101 and 127, 116. The link 127 is also connected to a forked link 131 engaging a pin on the motor 135, which is vertically movable or is pivoted at 136 and held in a raised position by a spring 138 sn that a belt 142 connecting a drive pulley 141 to the flywheel is not under tension. The motor is reversible and when started in the required direction of rotation, it runs freely until the lever 116 is operated to release the flywheel brake 114 and, through the link 131, lower the motor so that the belt 142 is tensioned and the flywheel is gradually spun up, the notched ring 88 rotating with it. To start-screwing up or unscrewing a nut, lever 101 is operated to apply the brake 99 to the ring 88 and the consequent lag of the ring relative to the flywheel tilts the finger 62 and moves one or other leg 66, 67 into the path of the projection 58 so that the socket tube is subjeced to an impact by the revolving mass of the flywheel.
Patent GB-1122541-A (GB)
Title: Improvements in or relating to machines having cutter-chain carrying arms
IPC: B28D1/08
Filed: 1966-01-07
Abstract: 1,122,541. Mineral-mining machines. MASCHINENFABRIK KORFMANN G.m.b.H. 7 Jan., 1966 [9 Jan., 1965], No. 835/66. Heading E1F. A machine for cutting blocks in quarries or underground chambers has a cutter chaincarrying arm that is pivotable about a chain drive shaft projecting from a cutter head that is pivotable about a horizontal axis with respect to a motor body on which the head is mounted, the body being rotatable about a vertical axis on a vertically movable support, rack and pinion actuated. All of the described pivotal movements may be through 360‹.
Patent GB-779779-A (GB)
Title: Manufacture of sheet glass
IPC: C03B15/08
Filed: 1956-01-10
Abstract: 779,779. Drawing sheet glass. PITTSBURGH PLATE GLASS CO. Jan. 10, 1956 [Oct. 14, 1955], No. 863/56. Class 56 In the drawing of a sheet of glass 7a from a gather 7 above a drawbar 8, cooling means. e.g. hairpin tube 13, is secured to the L-block 10 directly above the surface of the glass in the region 14, i.e. between the rear hot spring 16 and the drawbar 8. Additional or alternative coolers 15, 17 may be provided. To prevent too rapid cooling at the sides of the kiln, the coolers may be insulated at their ends, e.g. by a sheath 26 of asbestos with a stainless steel covering, or may be curved so that they are nearer the surface of the glass at the centre of the kiln. Cooling of the glass at the specified regions permits increased drawing speed.